[Anatomic abnormalities of the genital tract in ano-rectal malformations].

Of 152 patients with imperforate anus, 16 girls -25%), 10 boys (15%) have an abnormality of the genital tract and real frequency seems underevaluated. In girls, vaginal septum, bicornuate and didelphys uterus are mostly diagnosed, associated with severe unilateral upper urinary tract malformations. Absent vagina and uterus (Rokitansky syndrome) must be seen at birth, to preserve perineal fistula used to fashion a vagina at the time of the abdomino-perineal fistula pull through. In boys hypospadias, ectopia and uretero-vas anastomosis are the most frequent malformations.